Date: Sat, 28 Oct 2006 21:12:37 -0700 From: Julian Elischer <julian@elischer.org> To: Robert Watson <rwatson@freebsd.org> Cc: Paul Allen <nospam@ugcs.caltech.edu>, Lev Serebryakov <lev@freebsd.org>, current@freebsd.org Subject: Re: KSE, libpthread & libthr: almost newbie question Message-ID: <45442A35.2030803@elischer.org> In-Reply-To: <20061028104741.Q69980@fledge.watson.org> References: <917908193.20061027102647@serebryakov.spb.ru> <20061027103924.F79313@fledge.watson.org> <45426071.7020403@elischer.org> <602423478.20061028001449@serebryakov.spb.ru> <4542896D.1050001@elischer.org> <20061027231642.GJ30707@riyal.ugcs.caltech.edu> <45429703.8070305@elischer.org> <20061028104741.Q69980@fledge.watson.org>
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Robert Watson wrote: > > On Fri, 27 Oct 2006, Julian Elischer wrote: > >> there is class of problems (e.g. some java programs) that have >> THOUSANDS of threads, each representing an active aspect of some >> object. How do you put an rlimit on that without either 1/ stopping >> the program from working or 2/ allowing thousands of threads to exist >> but not screwing other users. > > Does the JVM actually expose thousands of threads to the OS, or does it > actually do its own M:N threading internally based on its execution > model? My impression is the latter, exposing threads to the OS only when > it needs them to consume kernel or CPU resources. I don't know the answer to that question, only that there is a class of program style that uses this model. > > Robert N M Watson > Computer Laboratory > University of Cambridge > _______________________________________________ > freebsd-current@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-current > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org"
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